Recently I decide to change the FullControl business model from paid download to freemium ( free download and PRO version via In-App purchase ). Then I had to deal with a couple of issues: receipt validation, PRO version available for “older” users, In-App purchase validation flow. In this post we are going to discuss the last point.

Welcome to my new website. I’m Francesco Burelli. I’m a student of computer engineering at Bologna university.
I start this blog to share my personal experiences about computer science. I hope that some of my personal projects and researches could be useful to someone. There are some issue that I met while I was developing my projects that Google or Stackoverflow can’t solve, so I want to share my solutions.
I’m Italian, sorry for my English.